Force-pump



(No Model.)

I. GROTE.

FORGE PUMP,

Patented Jan. 8, 1884.

IN l/E/VTOR A hrny v N. PETERS. Pwoumo n hnr. Walhingzom D. I:v

. ATENT Fries.

FERDINAND GROTE, OF EVANSVILLE, INDIANA.

FORCE-PUMP.

SPECIFICATION forming part of Letters Patent No. 291,845, dated January 8, 1884.

Application filed September 24, 1883.

To all whom it may concern Be it known that I, FERDINAND GROTE, a citizen of the United States, residing at Evansville, in the county of Vanderburg and State of Indiana, have invented certain new and useful Improvements in Double-Acting Force- Pumps, of which the following is a specifica tion, reference being had therein to the accompanying drawings.

My invention has relation to double-acting force-pumps and the object of the invention is to produce a pump for the rapid and efficient raising and forcing of water, that will be simple and cheap in construction and adapted to the various wants of the general public, for household, farm, and fire uses; and to these ends the novelty consists in the construction of the same, as will be hereinafter more fully described, and particularly pointed out in the claims.

In the accompanying drawings similar letters of reference indicate like parts of the illvention.

Figure 1 is a sectional elevation of my improved pump set up for operation, and Fig. 2 an elevation of the pumping-cylinders.

A is the standard, and its upper end is provided with a casting, B, which forms the airchamber delivery-spout and support for the handle 0. To the lower end of this standard A is secured a hollow connection, D, the lower end of which is tapped to receive the brace E, rigidly secured thereto by the lock-nut e, and the lower end of said brace is screwed into the casting F, which is provided with lateral branches at a and inlet a, into which is screwed the suction-pipe G, the lower end of which enters the well or water-supply.

To the branches a a of the casting F are secured the elbows H H by means of the bolts h passing through the ears h on said elbows, so as to securely clamp the casting Fbetween them, the joints between said casting and elbows being packed with rubber or leather washers in the usual manner.

I I are the foot-valves, and are of the usual construction.

K K are the lower and L L the upper cylinders.

(No model.)

M M are the piston-rods, and each one is provided with a small piston, m, Working in the upper cylinder, L, and a large piston, n, provided with a valve, n, working in thelower cylinder, K, said piston-rods and pistons being of the usual construction.

N is a boss cast upon the side of the cylinders L L, and is provided with ears 0 O on the outside, and an opening, P, which forms the .outlet for both the upper and lower pairs .of

cylinders. The rods 1) pass through the ears 0 0 on the bosses N, and by means of the nut s securely clamp the cylinders L L together with the connection D between them, the joints being packed in the ordinary way with a washer.

t t are cars cast upon the lower end of the cylinders K K, and similar lugs, k 70, are on the elbows H H, and through the ears tandk passes a rod, V, having nuts 12 22, so that the elbow and cylinder may be rigidly secured together.

The pump operates in the usual manner, and further description is deemed unnecessary.

What I claim, and desire to secure ters Patent of the United States, is-

1. The combination, with the cylinders L L, having bosses N N, and ears 0 0, of the connection D and rods 1), as and for the purpose set forth.

2. The combination, with the standard A, connection D, and cylinders L L and K K, of the screw-threaded rod E, elbows H, and casting F, substantially as set forth.

3. The combination, with the cylinders K K, having lugs t t, of the elbows H H, having lugs k k and h h, and the casting F and bolts V and h, and their nuts, as and for the pur pose set forth.

In testimony whereofI affix my signature in presence of two witnesses.

FERDINAND GROTE.

-Witnesses:

Enos SPENCER, W. T. BURKS.

by Let- 75 

